CN220679104U - Hydraulic forming mechanism for hollow pipe body - Google Patents
Hydraulic forming mechanism for hollow pipe body Download PDFInfo
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- CN220679104U CN220679104U CN202321541028.7U CN202321541028U CN220679104U CN 220679104 U CN220679104 U CN 220679104U CN 202321541028 U CN202321541028 U CN 202321541028U CN 220679104 U CN220679104 U CN 220679104U
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- 239000007788 liquid Substances 0.000 claims abstract description 19
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000000465 moulding Methods 0.000 claims description 21
- 230000007704 transition Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 239000000243 solution Substances 0.000 description 4
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
Abstract
The utility model discloses a hydraulic forming mechanism for a hollow pipe body, which comprises a frame, an inner die and an outer die, wherein the frame is provided with a positioning seat, the positioning seat is used for placing the bottom of a prefabricated pipe body, the inner die comprises a first die plate and a second die plate which are mutually matched, a forming cavity is formed by surrounding the first die plate and the second die plate when the first die plate and the second die plate are mutually closed, the outer die is arranged at the upper position of the inner die, the outer die is provided with an inner cavity, the outer die is arranged on a vertical moving frame, the vertical moving frame can drive the inner cavity to move between a position for coating the outer wall of the inner die and a position far away from the inner die, when the inner cavity coats the inner die, the inner die and the outer die form a closed cavity, the closed cavity is connected with a high-pressure liquid conveying device, and the high-pressure liquid conveying device can input high-pressure liquid with preset pressure to the closed cavity and force the inner wall of the pipe body to deform to be attached to the first forming cavity. By adopting the hydraulic forming method, the problem of stress in the existing processing is avoided.
Description
Technical Field
The utility model relates to the field of pipe bodies, in particular to a hydraulic forming mechanism for a hollow pipe body.
Background
In automotive parts, tubes are often used to effect the mounting and securing of the respective components, such as hydraulic stems.
However, the structure of the pipe body is generally an irregular pipe body, and in the conventional processing, the pipe body with a regular or predetermined shape is generally extruded and deformed by a die press, but the die press and the pipe body are in rigid contact, so that the following problems are likely to occur in the product after the actual processing: 1. scratches appear on the wall surface of the pipe body; 2. the formed pipe body has larger stress and is easy to generate local deformation, thereby influencing the quality of the product.
Disclosure of Invention
The utility model mainly aims to provide a hydraulic forming mechanism for a hollow pipe body, and aims to improve the existing pipe body forming structure, realize elastic stamping forming of the pipe body through fluid, reduce scratches and stress and improve the product quality.
In order to achieve the above object, the present utility model provides a hydraulic molding mechanism for a hollow pipe body, comprising:
the machine frame is provided with a positioning seat which is used for placing the bottom of the prefabricated pipe body;
the internal mold comprises a first template and a second template which are matched with each other, the first template and the second template can move between mutually separated and mutually closed positions, and a forming cavity is formed by surrounding the first template and the second template when the first template and the second template are mutually closed;
the outer mold is arranged at the upper position of the inner mold, the outer mold is provided with an inner cavity, the outer mold is arranged on a vertical moving frame, the vertical moving frame can drive the inner cavity to move between a position for coating the outer wall of the inner mold and a position far away from the inner mold,
when the inner cavity wraps the inner mold, the inner mold and the outer mold enclose a closed cavity, the closed cavity is connected with a high-pressure liquid conveying device, and the high-pressure liquid conveying device can input high-pressure liquid with preset pressure into the closed cavity and force the inner wall of the pipe body to deform to be attached to the first molding cavity.
In the technical scheme of the utility model, in actual processing, a prefabricated pipe body is placed on a positioning seat, then the outer wall of the pipe body is coated by a first template and a second template, meanwhile, an outer die moves downwards to a position where an inner cavity coats the outer wall of an inner die, the inner die is sealed and fixed to form a closed cavity, high-pressure liquid with preset pressure is injected to force the inner wall of the pipe body to deform to a preset processing shape, the processing shape is determined by the shape of the inner wall of a first molding cavity, the requirement that a plurality of steps are needed to process different positions in the prior art is effectively solved, the processing procedures are effectively reduced, the processing efficiency is improved, meanwhile, the problem of pipe body stress in the existing processing is avoided by adopting a hydraulic molding method, and the thickness of the molded pipe body is more uniform and stable.
Drawings
FIG. 1 is a cross-sectional view of the present utility model;
FIG. 2 is a second cross-sectional view of the present utility model;
FIG. 3 is a schematic perspective view of the present utility model;
fig. 4 is a perspective view of a tube body.
In the figure, 1 is a frame, 2 is a positioning seat, 21 is a guide post, 3 is an inner die, 31 is a first die plate, 32 is a second die plate, 4 is an outer die, 41 is an inner cavity, 5 is a vertical moving frame, 61 is a first forming cavity, 62 is a second forming cavity, 7 is a high-pressure liquid conveying device, and 100 is a pipe body.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, in the embodiment of the present utility model, directional indications (such as up, down, left, right, front, rear, top, bottom, inner, outer, vertical, lateral, longitudinal, counterclockwise, clockwise, circumferential, radial, axial … …) are referred to, and the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "first" or "second" etc. in the embodiments of the present utility model, the description of "first" or "second" etc. is only for descriptive purposes, and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.
As shown in fig. 1 to 4, a hydraulic molding mechanism for a hollow pipe body includes:
the device comprises a frame 1, wherein the frame 1 is provided with a positioning seat 2, and the positioning seat 2 is used for placing the bottom of a prefabricated pipe body;
an inner mold 3, the inner mold 3 including a first mold plate 31 and a second mold plate 32 which are fitted to each other, the first mold plate 31 and the second mold plate 32 being movable between positions separated from each other and closed to each other, and a molding cavity 61 being defined when the first mold plate 31 and the second mold plate 32 are closed to each other;
the outer mold 4 is arranged at the upper position of the inner mold 3, the outer mold 4 is provided with an inner cavity 41, the outer mold 4 is arranged on a vertical moving frame 5, the vertical moving frame 5 can drive the inner cavity 41 to move between a position for coating the outer wall of the inner mold 3 and a position far away from the inner mold 3,
when the inner mold 3 is covered by the inner cavity 41, the inner mold 3 and the outer mold 4 enclose a closed cavity, the closed cavity is connected with a high-pressure liquid conveying device 7, and the high-pressure liquid conveying device 7 can input high-pressure liquid with preset pressure into the closed cavity and force the inner wall of the pipe body to deform to be attached to the first forming cavity 61.
In actual processing, the prefabricated pipe body is placed on the positioning seat 2, then the first template 31 and the second template 32 cover the outer wall of the pipe body, meanwhile, the outer mold 4 moves down to the position where the inner cavity 41 covers the outer wall of the inner mold 3, the inner mold 3 is sealed and fixed to form a closed cavity, high-pressure liquid with preset pressure is injected to force the inner wall of the pipe body to deform to a preset processing shape, the processing shape is determined by the shape of the inner wall of the first forming cavity 61, the pipe body is formed through hydraulic forming, the requirement that a plurality of steps are needed to process different positions in the prior art is effectively solved, the processing procedures are effectively reduced, the processing efficiency is improved, meanwhile, the problem of pipe body stress in the existing processing is avoided by adopting a hydraulic forming method, and the thickness of the formed pipe body is more uniform and stable.
Specifically, the first mold plate 31 is provided with a first molding groove, the second mold plate 32 is provided with a first molding groove, and the first molding groove and the second molding groove enclose a first molding cavity 61, so that in actual processing, the pipe body can be molded into different shapes, such as a concave-convex surface, according to different requirements; the first template 31 may be a single-point pivot or a detachable one; the first template 31 and the second template 32 are symmetrically arranged in a semicircular shape, and of course, other shapes can be designed according to actual needs.
More specifically, the outer mold 4 is an integrally formed hollow cylinder.
In the embodiment of the present utility model, a second molding cavity 62 is disposed at the top of the inner cavity 41, and the second molding cavity is located at the upper end position of the inner mold 3.
Further, the inner wall at the lower end of the second molding cavity is in fit transition with the inner wall at the upper end of the first molding cavity, and is used for molding the step position shown in fig. 4.
In the embodiment of the utility model, the vertical moving frame is a vertical hydraulic driving device.
Specifically, the high-pressure liquid delivery device 7 is connected to the top end of the outer die 4.
In the embodiment of the present utility model, the upper end of the positioning seat 2 is provided with a guiding post 21 having a diameter smaller than that of the guiding post, so as to facilitate the insertion and deformation of the pipe body 100, i.e. the injection of the high-pressure liquid into the inside of the pipe body and the forcing of the high-pressure liquid to deform outwards, wherein the shape of the bottom is unchanged and the predetermined shape is processed.
In the embodiment of the utility model, the outer wall of the inner mold 3 is gradually expanded from top to bottom, so that the outer mold 4 is guided to facilitate the inner cavity 41 to extend.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather, the equivalent structural changes made by the description of the present utility model and the accompanying drawings or the direct/indirect application in other related technical fields are included in the scope of the utility model.
Claims (10)
1. A hydraulic forming mechanism for a hollow tube, comprising:
the machine frame is provided with a positioning seat which is used for placing the bottom of the prefabricated pipe body;
the internal mold comprises a first template and a second template which are matched with each other, the first template and the second template can move between mutually separated and mutually closed positions, and a forming cavity is formed by surrounding the first template and the second template when the first template and the second template are mutually closed;
the outer mold is arranged at the upper position of the inner mold, the outer mold is provided with an inner cavity, the outer mold is arranged on a vertical moving frame, the vertical moving frame can drive the inner cavity to move between a position for coating the outer wall of the inner mold and a position far away from the inner mold,
when the inner cavity wraps the inner mold, the inner mold and the outer mold enclose a closed cavity, the closed cavity is connected with a high-pressure liquid conveying device, and the high-pressure liquid conveying device can input high-pressure liquid with preset pressure into the closed cavity and force the inner wall of the pipe body to deform to be attached to the first molding cavity.
2. The hydroforming mechanism for hollow tubes according to claim 1, wherein: the first template is provided with a first forming groove, the second template is provided with a first forming groove, and the first forming groove and the second forming groove enclose a first forming cavity.
3. The hydroforming mechanism for hollow tubes according to claim 1, wherein: the outer die is an integrally formed hollow cylinder.
4. The hydroforming mechanism for hollow tubes according to claim 1, wherein: the top of the inner cavity is provided with a second molding cavity, and the second molding cavity is positioned at the upper end of the inner mold.
5. The hydroforming mechanism for a hollow tube according to claim 4, wherein: the inner wall of the lower end of the second molding cavity is in fit transition with the inner wall of the upper end of the first molding cavity.
6. The hydroforming mechanism for hollow tubes according to claim 1, wherein: the vertical moving frame is a vertical hydraulic driving device.
7. The hydroforming mechanism for hollow tubes according to claim 1, wherein: the high-pressure liquid conveying device is connected with the top end of the outer die.
8. The hydroforming mechanism for hollow tubes according to claim 1, wherein: the upper end of the positioning seat is provided with a guide post with the diameter smaller than that of the positioning seat.
9. The hydroforming mechanism for hollow tubes according to claim 1, wherein: the outer wall of the inner die is gradually expanded from top to bottom.
10. The hydroforming mechanism for hollow tubes according to claim 1, wherein: the first template and/or the second template are in a single point pivot setting and/or a removable setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321541028.7U CN220679104U (en) | 2023-06-15 | 2023-06-15 | Hydraulic forming mechanism for hollow pipe body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321541028.7U CN220679104U (en) | 2023-06-15 | 2023-06-15 | Hydraulic forming mechanism for hollow pipe body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220679104U true CN220679104U (en) | 2024-03-29 |
Family
ID=90374692
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321541028.7U Active CN220679104U (en) | 2023-06-15 | 2023-06-15 | Hydraulic forming mechanism for hollow pipe body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220679104U (en) |
-
2023
- 2023-06-15 CN CN202321541028.7U patent/CN220679104U/en active Active
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